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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /Documentation/dvb/bt8xx.txt
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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1How to get the Nebula, PCTV and Twinhan DST cards working
2=========================================================
3
4This class of cards has a bt878a as the PCI interface, and
5require the bttv driver.
6
7Please pay close attention to the warning about the bttv module
8options below for the DST card.
9
101) General informations
11=======================
12
13These drivers require the bttv driver to provide the means to access
14the i2c bus and the gpio pins of the bt8xx chipset.
15
16Because of this, you need to enable
17"Device drivers" => "Multimedia devices"
18 => "Video For Linux" => "BT848 Video For Linux"
19
202) Loading Modules
21==================
22
23In general you need to load the bttv driver, which will handle the gpio and
24i2c communication for us. Next you need the common dvb-bt8xx device driver
25and one frontend driver.
26
27The bttv driver will HANG YOUR SYSTEM IF YOU DO NOT SPECIFY THE CORRECT
28CARD ID!
29
30(If you don't get your card running and you suspect that the card id you're
31using is wrong, have a look at "bttv-cards.c" for a list of possible card
32ids.)
33
34Pay attention to failures when you load the frontend drivers
35(e.g. dmesg, /var/log/messages).
36
373a) Nebula / Pinnacle PCTV
38--------------------------
39
40 $ modprobe bttv i2c_hw=1 card=0x68
41 $ modprobe dvb-bt8xx
42
43For Nebula cards use the "nxt6000" frontend driver:
44 $ modprobe nxt6000
45
46For Pinnacle PCTV cards use the "cx24110" frontend driver:
47 $ modprobe cx24110
48
493b) TwinHan
50-----------
51
52 $ modprobe bttv i2c_hw=1 card=0x71
53 $ modprobe dvb-bt8xx
54 $ modprobe dst
55
56The value 0x71 will override the PCI type detection for dvb-bt8xx, which
57is necessary for TwinHan cards.#
58
59If you're having an older card (blue color circuit) and card=0x71 locks your
60machine, try using 0x68, too. If that does not work, ask on the DVB mailing list.
61
62The DST module takes a couple of useful parameters, in case the
63dst drivers fails to detect your type of card correctly.
64
65dst_type takes values 0 (satellite), 1 (terrestial TV), 2 (cable).
66
67dst_type_flags takes bit combined values:
681 = new tuner type packets. You can use this if your card is detected
69 and you have debug and you continually see the tuner packets not
70 working (make sure not a basic problem like dish alignment etc.)
71
722 = TS 204. If your card tunes OK, but the picture is terrible, seemingly
73 breaking up in one half continually, and crc fails a lot, then
74 this is worth a try (or trying to turn off)
75
764 = has symdiv. Some cards, mostly without new tuner packets, require
77 a symbol division algorithm. Doesn't apply to terrestial TV.
78
79You can also specify a value to have the autodetected values turned off
80(e.g. 0). The autodected values are determined bythe cards 'response
81string' which you can see in your logs e.g.
82
83dst_check_ci: recognize DST-MOT
84
85or
86
87dst_check_ci: unable to recognize DSTXCI or STXCI
88
89--
90Authors: Richard Walker, Jamie Honan, Michael Hunold